# The nascent wind of AGB star R Doradus: evidence for a recent episode of enhanced mass loss

## TL;DR

This study uses ALMA observations to reveal a recent episode of enhanced mass loss in the circumstellar envelope of AGB star R Doradus, showing complex inhomogeneous outflows and a rotating disc.

## Contribution

It provides new evidence of a radial inhomogeneous outflow and a recent mass loss episode in R Doradus, expanding understanding of AGB star wind development.

## Key findings

- Detection of a large-scale radial outflow with inhomogeneity.
- Evidence for a recent enhanced mass loss episode.
- Presence of a rotating disc in the circumstellar environment.

## Abstract

We analyse ALMA observations of the SO($J_K=6_5-5_4$) emission of the circumstellar envelope of oxygen-rich AGB star R Dor, probing distances between 20 and 100 au from the star where the nascent wind is building up. We give evidence for the slow wind to host, in addition to a previously observed rotating disc, a radial outflow covering very large solid angles and displaying strong inhomogeneity both in direction and radially: the former takes the form of multiple cores and the latter displays a radial dependence suggesting an episode of enhanced mass loss having occurred a century or so ago.